Seiko Cal. 6688 - 270

The Seiko 6688-270 represents an important milestone in Seiko's 1986 lineup. It features a Green dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-3a795a7f283f]

Also known as: Bellmatic, World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

8.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Green

Jewels

18j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1986

Related Models

• Seiko 7057-507
• Seiko 3899-429
• Seiko 6240-188
• Seiko 6181-349
• Seiko 0738-506
• Seiko 4529-764
• Seiko 6323-325
• Seiko 7032-320
• Seiko 4512-744
• Seiko 7112-625
• Seiko 4470-480
• Seiko 7184-682